package com.xpf.controller.center;

import com.xpf.controller.BaseController;
import com.xpf.pojo.Users;
import com.xpf.pojo.bo.center.CenterUserBO;
import com.xpf.pojo.vo.UserVO;
import com.xpf.resource.FileUpload;
import com.xpf.service.center.CenterUserService;
import com.xpf.utils.CookieUtils;
import com.xpf.utils.DateUtil;
import com.xpf.utils.JSONResult;
import com.xpf.utils.JsonUtils;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiParam;
import org.apache.commons.io.IOUtils;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.validation.BindingResult;
import org.springframework.validation.FieldError;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.validation.Valid;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

@Api(value = "用户信息接口", tags = {"用户信息接口相关接口"})
@RestController
@RequestMapping("userInfo")
public class CenterUserController extends BaseController {

    @Autowired
    private CenterUserService centerUserService;

    @Autowired
    private FileUpload fileUpload;

    @ApiOperation(value = "用户头像修改", notes = "用户头像修改")
    @PostMapping("uploadFace")
    public JSONResult uploadFace(
            @ApiParam(name = "userId", value = "用户id", required = true)
            @RequestParam String userId,
            @ApiParam(name = "file", value = "用户头像", required = true)
            MultipartFile file,
            HttpServletRequest request,
            HttpServletResponse response){
        //定义头像保存的地址
//        String fileSpace = IMAGE_USER_FACE_LOCATION;
        String fileSpace = fileUpload.getImageUserFaceLocation();
        //在路径上为每一个用户增加一个userId文件夹 /{userId}，用于区分不同用户上传
        String uploadPathPrefix = File.separator + userId;

        FileOutputStream fileOutputStream = null;
        try {
            //开始文件上传
            if (file != null){
                //获得文件的上传名称
                String fileName = file.getOriginalFilename();
                if (StringUtils.isNotBlank(fileName)){
                    //文件重命名
                    String[] fileNameArr = fileName.split("\\.");
                    //获取文件的后缀名
                    String suffix = fileNameArr[fileNameArr.length - 1];

                    //防止黑客攻击，上传 .sh .php
                    if (!suffix.equalsIgnoreCase("png") &&
                            !suffix.equalsIgnoreCase("jpg") &&
                            !suffix.equalsIgnoreCase("jpeg")){
                        return JSONResult.errorMsg("图片格式不正确！仅支持.png .jpg .jpeg");
                    }

                    //文件名称重组 覆盖式上传。 如果要使用增量式：额外拼接当前时间
                    //face-{userId}.png
                    String newFileName = "face-" + userId+ "." + suffix;
                    //上传的头像最终保存的位置
                    String finalFacePath = fileSpace + uploadPathPrefix + File.separator + newFileName;

                    //用于提供web服务的访问地址
                    uploadPathPrefix += ("/" + newFileName);

                    File outFile = new File(finalFacePath);
                    //如果父级文件夹不存在，则创建
                    if (outFile.getParentFile() != null){
                        //创建文件夹
                        outFile.getParentFile().mkdirs();
                    }

                    //文件输出保存到目录
                    fileOutputStream = new FileOutputStream(outFile);
                    InputStream inputStream = file.getInputStream();
                    IOUtils.copy(inputStream, fileOutputStream);
                }

            }
        }catch (Exception e){
            e.printStackTrace();
        }finally {
            try {
                if (fileOutputStream != null){
                    fileOutputStream.flush();
                    fileOutputStream.close();
                }
            } catch (IOException e) {
                e.printStackTrace();
            }
        }

        //获取服务端图片地址
        String imageServerUrl = fileUpload.getImageServerUrl();
        //web服务端最终访问地址
        //由于浏览器可能存在缓存的情况，所有在这里，我们可以加上一个时间戳来保证更新的图片及时刷新
        String finalServerFaceUrl = imageServerUrl + uploadPathPrefix
                + "?t=" + DateUtil.getCurrentDateString(DateUtil.DATE_PATTERN);

        //更新用户头像到数据库
        Users userResult = centerUserService.updateUserFace(userId, finalServerFaceUrl);

        //更新cookie
//        userResult = setNullProperty(userResult);
        UserVO userVO = conventUserVO(userResult);
        CookieUtils.setCookie(request, response, "user", JsonUtils.objectToJson(userVO),true);

        //TODO（已经修改，但插眼保留）增加令牌token，会整合进redis，分布式会话

        return JSONResult.ok();
    }

    @ApiOperation(value = "修改用户信息", notes = "修改用户信息")
    @PostMapping("/update")
    public JSONResult userInfo(
            @ApiParam(name = "userId", value = "用户id", required = true)
            @RequestParam String userId,
            @RequestBody @Valid CenterUserBO centerUserBO,
            BindingResult result,
            HttpServletRequest request,
            HttpServletResponse response){

        //判断BindingResult是否保存错误的验证信息，如果有，直接return
        if (result.hasErrors()){
            Map<String, String> errorMap = getErrors(result);
            return JSONResult.errorMap(errorMap);
        }

        Users userResult = centerUserService.updateUserInfo(userId, centerUserBO);
//        userResult = setNullProperty(userResult);
        //TODO(这里已经修改了，但是还是保留个TODO，插个眼)
        // 增加令牌token，会整合进redis，分布式会话。
        // 修改完用户个人信息之后，更新token

        UserVO userVO = conventUserVO(userResult);

        CookieUtils.setCookie(request, response, "user", JsonUtils.objectToJson(userVO),true);

        return JSONResult.ok();
    }

    private Map<String, String> getErrors(BindingResult result){
        Map<String, String> map = new HashMap<>();
        List<FieldError> errorList = result.getFieldErrors();
        for (FieldError error : errorList) {
            //发生验证错误所对应的某一个属性
            String errorField = error.getField();
            //验证错误的信息
            String errorMsg = error.getDefaultMessage();

            map.put(errorField, errorMsg);
        }
        return map;
    }

    private Users setNullProperty(Users resultUsers){
        resultUsers.setPassword(null);
        resultUsers.setCreatedTime(null);
        resultUsers.setEmail(null);
        resultUsers.setMobile(null);
        resultUsers.setUpdatedTime(null);
        return resultUsers;
    }
}
